LGS Mixed Practice Test #536

Question 1

The wavelength of visible light lies roughly between:

Accepted Answer

400–700 nm — Visible light spans violet (~400 nm) to red (~700 nm).

Answer

100–200 nm

Answer

1000–2000 nm

Answer

3 m

Question 2

The first cyber police station in India was in:‌​‍

Accepted Answer

Bangalore — Bangalore had India's first cyber crime police station.‌​‍

Answer

Delhi

Answer

Mumbai

Answer

Thiruvananthapuram

Question 3

Long-term use of proton pump inhibitors (PPIs) like omeprazole has been associated with an increased risk of which of the following conditions?

Accepted Answer

B. Osteoporosis — Long-term use of PPIs can reduce gastric acid secretion, which may impair the absorption of calcium and magnesium. This can lead to an increased risk of osteoporosis and bone fractures, particularly in older adults. Other long-term concerns include increased risk of C. difficile infection and vitamin B12 deficiency.

Answer

A. Hypertension

Answer

C. Type 2 Diabetes Mellitus

Answer

D. Glaucoma

Question 4

At what age would a typically developing infant be expected to pick up a small object like a raisin using a pincer grasp (thumb and forefinger)?

Accepted Answer

C. 10 months — The pincer grasp, involving the precise opposition of the thumb and forefinger to pick up small objects, typically develops around 9-12 months of age, with 10 months being a common milestone. At 6 months, infants use a palmar grasp, and by 8 months, they might use a crude pincer grasp, but a mature pincer grasp is later.

Answer

A. 6 months

Answer

B. 8 months

Answer

D. 12 months

Question 5

Which of the following is NOT a key component of microteaching skills?

Accepted Answer

B. Use of audio-visual aids for every lesson — Microteaching focuses on practicing a single teaching skill in a controlled environment, not necessarily requiring audio-visual aids for every lesson. Components like lesson planning, feedback, and short-duration practice are essential.

Answer

A. Lesson planning with clear learning objectives

Answer

C. Feedback session with peers or mentors

Answer

D. Practice of a single teaching skill in a short duration

Question 6

Mass defect gives binding energy via:‌​‍

Accepted Answer

E = mc² (Einstein) — Binding energy per nucleon maximum around Fe-56 (~8.8 MeV/nucleon). ‌​‍Fission of heavy, fusion of light release energy.

Answer

E = kT

Answer

E = ½mv²

Answer

E = qV

Question 7

J.C. Daniel Award:‌​‍

Accepted Answer

Lifetime Achievement (Kerala film) — Kerala's highest film honour.‌​‍

Answer

Actor

Answer

Producer

Answer

Director only

Question 8

A pregnant woman in her second trimester asks about essential nutrients for her baby's development. Which nutrient is crucial for preventing neural tube defects and should be emphasized during antenatal counseling, especially in the periconceptional period?

Accepted Answer

C. Folic Acid; for proper neural tube closure and preventing birth defects. — Folic acid (Vitamin B9) is critically important for preventing neural tube defects (NTDs) such as spina bifida and anencephaly. Supplementation is recommended starting at least one month before conception and continuing through the first trimester, as neural tube closure occurs very early in pregnancy.

Answer

A. Iron; for preventing maternal anemia and promoting fetal growth.

Answer

B. Calcium; for strong bones and teeth development.

Answer

D. Vitamin D; for calcium absorption and bone health.

Question 9

Which state in India celebrates 'Vidyasagar Jayanti' on September 26th as a tribute to Ishwar Chandra Vidyasagar, who contributed significantly to women's education and social reforms?

Accepted Answer

A. West Bengal — Vidyasagar Jayanti is celebrated on September 26th to commemorate the birth anniversary of Ishwar Chandra Vidyasagar, a prominent social reformer and educator known for his work in women's education and widow remarriage in West Bengal. The other states listed do not observe this day as an education-focused celebration.

Answer

B. Maharashtra

Answer

C. Tamil Nadu

Answer

D. Kerala

Question 10

Which fuel has the highest calorific value per kg?‌​‍

Accepted Answer

Hydrogen — H₂ has calorific value ~143 MJ/kg — highest of any chemical fuel.‌​‍

Answer

Coal

Answer

Wood

Answer

Petrol

LGS Mixed Practice Test #536